TitleLehmer - Gears Sieve
|Other number||#111||Verso pencil|
Dimensionsoverall: 10 in x 8 in
DescriptionB&W image of D.H. Lehmer's gear sieve. It is on a wheeled cart. The motor is missing but belt is on pulley.
Verso: Paper label held with scotch tape: "DH Lehmer First photoelectric sieve, 1932, as it appeared, at the Century of Progress Exposition in Chicago" . Blue pencil "D.H. D.H. Lehmer Electric Sieve 1932". Paper labels: " Please return to" The Computer Museum Photographic Archives Museum Wharf 300 Congress Street Boston, MA 02210" , This photo may not be reproduced without written permission of the Photo Archives of the Computer Museum, Boston, MA."